activity
20242026
collaborators

6 papers

math.AG2026

The derived moduli of perverse sheaves

Peter J. Haine, Mauro Porta, Jean-Baptiste Teyssier

We construct higher derived Artin stacks parametrizing constructible sheaves on complex algebraic varieties and compact real analytic varieties. Furthermore, we show that every per…

math.AG2025

Hochschild-Kostant-Rosenberg isomorphism for derived Deligne-Mumford stacks

Lie Fu, Mauro Porta, Sarah Scherotzke +1

We prove a Hochschild--Konstant--Rosenberg (HKR) theorem for arbitrary derived Deligne--Mumford (DM) stacks, extending the results of Arinkin-Căldăraru-Hablicsek in the smooth, glo…

math.CT2025

Standard -structures

Peter J. Haine, Mauro Porta, Jean-Baptiste Teyssier

We provide a general construction of induced -structures, that generalizes standard -structures for -categories of sheaves. More precisely, given a presentable $\inft…

math.AG2025

The derived moduli of Stokes data

Mauro Porta, Jean-Baptiste Teyssier

The goal of this paper is to show that Stokes data coming from flat bundles form a locally geometric derived stack locally of finite presentation. This generalizes existing geometr…

math.AT2024

Exodromy beyond conicality

Peter J. Haine, Mauro Porta, Jean-Baptiste Teyssier

We show that compact subanalytic stratified spaces and algebraic stratifications of real varieties have finite exit-path -categories, refining classical theorems of Lefsche…

math.AG2024

Homotopy theory of Stokes data

Mauro Porta, Jean-Baptiste Teyssier

In this paper we lay the foundations of an -categorical theory of Stokes data.